Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
huang ying » huang jing, huang ting, huang yang
wang yang » wang yan, wang liang, wang yanling
zhang wei » zhen wei
aging how » making how, saving how, agile how
king how » making how, being how, king know
wei 1 » web 1, wei _

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (huang ying)) zhang wei 1 ((king how) OR (aging how)) knowing about ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (huang ying)) zhang wei 1 ((king how) OR (aging how)) knowing about ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (huang ying)) zhang wei 1 ((king how) OR (aging how)) knowing about ;*.